EP 3064741 A1 20160907 - FORWARD-SWEPT IMPELLERS FOR GAS TURBINE ENGINES
Title (en)
FORWARD-SWEPT IMPELLERS FOR GAS TURBINE ENGINES
Title (de)
VORWÄRTSGERICHTETE KOMPRESSORLAUFRÄDER FÜR GASTURBINENTRIEBWERKE
Title (fr)
ROTORS DE COMPRESSEUR RADIALS POUR MOTEURS À TURBINE À GAZ
Publication
Application
Priority
US 201514623761 A 20150217
Abstract (en)
Embodiments of a forward-swept impeller are provided, as are embodiments of a gas turbine engine containing a forward-swept impeller. In one embodiment, the gas turbine engine (20) includes a shaft (34) and a forward-swept impeller (32) mounted to the shaft. The forward-swept impeller includes, in turn, an inboard impeller section (80), an outboard impeller section (82) circumscribing the inboard impeller section, and a plurality of hub flow paths (56) extending over the forward-swept impeller from the inboard impeller section to the outboard impeller section. The plurality of hub flow paths each have a flow path exit (60) that is tilted in a forward direction, as taken along a line tangent to the flow path exit.
IPC 8 full level
F02C 3/09 (2006.01); F04D 17/02 (2006.01); F04D 29/28 (2006.01)
CPC (source: EP US)
F01D 5/225 (2013.01 - US); F01D 9/04 (2013.01 - US); F02C 3/09 (2013.01 - EP US); F04D 29/284 (2013.01 - EP US); F05D 2250/38 (2013.01 - EP US); F05D 2260/941 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US)
Citation (search report)
- [X] US 2014127023 A1 20140508 - HERRAN MATHIEU [FR], et al
- [X] US 2658338 A 19531110 - RENE LEDUC
- [X] US 2543923 A 19510306 - MIXSELL WARD T
- [X] US 3365892 A 19680130 - GEORGE DERDERIAN
- [X] US 3093084 A 19630611 - GEORGE DERDERIAN
- [XA] US 5020971 A 19910604 - GREENSPAN ALEXANDER [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3064741 A1 20160907; EP 3064741 B1 20210407; US 2016238018 A1 20160818; US 9970452 B2 20180515
DOCDB simple family (application)
EP 16155093 A 20160210; US 201514623761 A 20150217